Electric heater



Patented June 20, 1922.

U D. s'rRAw, or eosHEN, I-NniANA.

ELECTRIC HEATER,

Application ined september is," i920. serial No. 410,034.

To Zlio/omit may conce/fn.' n

lie it .known that l, U D. Sfrnaw, a citizen ot the United States, residing in the city ot Goshen, county ot llllldiart, Indiana, have invented certain new and useful improveniente in Allllectric Heaters, of which the tollowing is a specilication.

My invention relates to electric heaters and especially to heaters for use in openingl electric storage batteries.

te is Well known, electric storage batteries have a removable cover therefor whichcover ie usually sealed to the battery casing in some manner. The present practice Vin thatrespect Ais to use a Jfusible sealing wax ol' some hind., and when removal oiE the battery cover is desired, or necessaryi to gain access to the battery plates, steam or hot Water is used to .melt the sealing wax between the battery cover and casing. Thin process is very disagreeable, unclean and A.fred uentl expensi re.

An object ot' my invention is to provide en electrically7 heated cabinet Within which the storage battery may be placed to'inelt the sealingI 'wax sealing the battery cover to the easing to enable the ready removal oit' the cover troni the latter. Other objects ol' my invention are mentioned and described herein.

The preferred en'iliiodiment ot my .inrenk tion ie illustrated in the accompanying dra-wimy in which 'Figure 1 is an end elevation oli the heater cabinet; Fig. 2 is a eeetion taken on the line 2 2 ot' Fig. 1 Fig. 3 is a section taken on the line :3f-i5 of Fig. 2; Fig. y-1 is a section taken on the line 41-4 ot Fig. 3; and Fig. 5 is a 'fragmental View showing a thermometer applied to the cabinet. i

Similar nl'unerals ci? reference Aindicate like membersl throughout the several views on the drawing. i

lleterring to the drawingindetail. the numeral 1 indicates generally an electric storage battery cashing; which is provided. Witha removable top coter 2, the latter being adapted to be fastened to the 'former in any suitable manner and sealed with a Vfusible seal- :ineV wax or material il introduced between the cover and the battery casing to render the battery interior impervious to air, atmospheric conditions, or deleterious elements.

rlhe numeral il indicates a cabinet or boxlike member which may be open at the loot- Specification of Letters Patent. Patented June 20,

tom to enable the ready encompassment or enclosure of the battery casing 1. Thecab metil may have a top Wall 5 in which the electric heating elements 6, 6 are mounted to depend therefrom into the cabinet interior. One or more of the heating elements 6 may be'used according to the size of the cabinet and the rapidity with Which it is desired to raise the temperature Within the cabinet. .Each of the elements 6 may consist of a Vcoil carrier 7, made of any suitable insulating material, a cap member 8. also made ol. any .suitable insulating material, connected With the body member T through the wall aperture 9 and secured together by the bolt 10. in electric resistance coil l1 is mounted upon the member '7. '.lerm'inale 1Q and 13 are carried by the cap member 8 With which the ends 14- and 15 ol" the coil 11 are connected, said terminals being' insulated from the Wall 5 in 'the cap 8 and provided with the binder nuts 16 and 17 threaded thereon.

.ln the structure 'illustrated two of the heater elements 6 are shown the terminals whereof are connected by the parallel electric current! conductor links 18. and 19 secured thereto by the binder nuts 16 and 1i". A cover u'iember 2t) may be detachably Secured to the cabinet il over the cabinet top Wall 5 by bolts 21 or other suitable fastener members, to enable ready access to the terminals 12 and '13 and the bolt VI() of the heater elements.

Electric current conduit Wires 22 and `23 may be connected With either set of the terminals 12 and 13 which Wires may be connected with any suitable source of electric cur-rent.

Numeral 21 indicates a thermometer mounted in the cabinet Wall to readily determine the temperature Within the cabinet.

ln the practical application of my 'invenn tion .lf have YFound that it is especially Valuable in an automobile garage not only for opening' storage batteries but aleo tor many repair jobs such as drying reshellacked armatures o1 electric generatore, drying` out cork floats for carburetore for reshellacking, and 'the like.

l claim:

1. In a heater ttor the purpose specified the combination With a casingfor inclosing the article to be, heated, of an electric heater element extending` into said casing and having binding posts on the outside thereof, a

cover for said binding` posts detachably Sie-Y Q igienico cured to the easing, and an electric conductor carried by said detachable cover tor conneetion to said binding poets.

2. In a heater for the purpose specified, the combination With a easing` open at the bottom to be set down over the article to be heated, o'l an electric heater element mounted on and extending into said easing, and mea-ns tor connecting said heater element with a source of electric current.

3. In a` heater for the purpose Specified, the combination with a casing open at the bottoni to be set down over the article to be heated, 0i an electric heater element depending 'trom the top et said casing` and having binding poets on the outside thereof, a 'cover for said binding` posts detachablyy eeciiired to the easing, and an electric conductor carried by said detachable cover lor coimeetion to said binding posts.

4. In a heater 'tor the purpose Speeilied, the combination with a caeing,` to inrloee the article 'to be heated, ot a hollow tubular member oi' insulating, material extending` inte the same, a bolt having its head housed in eaid tubular ifien'iber and serving` to liasten the :farne to the casing, and a heater element mounted on the outside ot said niember.

in a heater 'for the purpose specified, the combination with a casing to inclose the artirle to be heated, ot a hollow tubular inemher ot insulating material abutting at one end against the casingl and extending into the saine, Said member having` a large bore extending trom its outer end through the greater portion olf its length and a sin-aller bore extending 'through the remainder thereof, a bolt having its head housed Viu the larger bore of Said tubular member and its shank extending` through the smaller bore thereoi Vfor taetening' the saine to the casing, and a heater element mounted on the outside oli Said member.

Vn testimony whereof l have hereunto afiixed my signature this; 10th, day ot September, 1920.

U D. STRAW. 

